Islet of Zeus

The Islet of Zeus was the sunken ruins of a sanctuary located near the shore southwest of Cephalonia during the 5th century BC. In 431 BC, the mercenary Kassandra was hired by Orestis and Medea Banis to retrieve the legendary necklace of Prokris from a sunken chest. She proceeded to kill several sharks before recovering the necklace, and she gave the necklace to the sellers so that they could restart their lives elsewhere.